What are these headers??
 

Picked up these for FREE, previous owner was cleaning out his shed. He says they’re SLP, but there’s no tag or anything. Only thing is “S# 002340” stamped on the engine side of the flange. Any help please so I can know what Y pipe to buy?
https://cimg9.ibsrv.net/gimg/ls1tech...a7364cee7.jpeg
https://cimg0.ibsrv.net/gimg/ls1tech...2b761cc3a.jpeg

Something like a Y-pipe is easy for any good muffler shop to fab up in short order, especially if you use a Flowmaster Y-merge

Look like Hooker/Jet Hot. Basically the same header.

That's not a Hooker. The flange is milled flush. Hookers protrude through about 1/8 of an inch.

I think those are old SLP. Looks like they at least attempt to get close to equal length.

For sure not SLP. The old SLP header had one tube that did a complete 180.

Its the Hooker/Jet Hot design so I guess it's Jet Hot.

Thanks, I’ve searched and searched and I can’t even find information on these “jet hot” headers. So I went ahead and cleaned them up, slapped some high-heat paint on them and ordered a TSP 3” ORY

OOPS, I was looking at a wrong picture or something on google. Yea , the old SLP's looped around a lot more & had a really short collector .At any rate, nice gift.
But at any rate you can count on having to make something fit..